[固定建筑物] 采礦防護罩(防護支撐) mining shield: 掘進護盾shield support: 盾構支架; 掩護支架shield mining method: 盾蓋式開采法brake support shield: 閘支板engine support oil shield: 發(fā)動機支架防油罩下載手機詞典可隨時隨地查詞查翻譯